The NEOS Server offers FICO Xpress for the
solution of linear programming (LP) problems that can be modeled in
AMPL format. To learn more about the FICO Xpress Optimization Suite, visit the FICO Optimization website.
Using the NEOS Server with FICO Xpress
The user must submit a model in AMPL
format to solve a linear program. The examples section of the AMPL website provides examples of models in AMPL format.
The LP problem must be specified by a model file with the options of a data file
and a commands file. If the commands file is specified, it must contain
the AMPL solve command; however, it must not contain the model
or data commands. The model and data files are renamed internally
Note: An email address is required for any submissions
to FICO Xpress solvers. This email address will be forwarded to FICO
and may be used by FICO for promotional purposes. When using the XML-RPC
interface, you must add the line <email>firstname.lastname@example.org</email> to the XML file that is submitted to NEOS.
The commands file may include option settings for FICO Xpress. To specify
solver options, add
option xpress_options 'OPTIONS';
where OPTIONS is a list of one or more of the FICO Xpress options listed
in Xpress Options for AMPL.